A final inquiry is being held into whether the woman branded Australia's worst female serial killer is actually responsible for the murder for her four babies.
Kathleen Folbigg, 54, has spent the past two decades behind bars in Australia after being convicted in 2003 of murdering three of her children, Patrick, Sarah and Laura, and manslaughter in relation to her fourth child Caleb.
She is appearing in court this week as scientists give evidence which they believe will clear her name after serving 20 years of a 25-year sentence.
